Three-shaft stirring tank

Abstract

The utility model belongs to the technical field of stirring equipment, and particularly discloses a three-shaft stirring tank which comprises a tank body, the upper portion and the lower portion of the tank body are fixedly connected with a feeding pipe and a discharging pipe respectively, a stirring assembly is arranged in the tank body, and the stirring assembly comprises a first stirring shaft and two sets of second stirring shafts symmetrically arranged on the two sides of the first stirring shaft. A driving piece is further installed on the upper portion in the tank body and drives the first stirring shaft and the two second stirring shafts to rotate, and a material guiding piece for guiding materials to stirring areas of the second stirring shafts is arranged on the first stirring shaft; according to the three-shaft stirring tank provided by the utility model, the first stirring shaft and the two second stirring shafts are driven to rotate, and the material guide piece arranged on the first stirring shaft can guide materials in the middle of the tank body to the stirring areas of the second stirring shafts; and the materials in the stirring area of the first stirring shaft in the tank body can be continuously replaced with the materials in the stirring area of the second stirring shaft, so that the materials are stirred more comprehensively, and the materials are conveniently, quickly and fully mixed.

Description

Technical Field

[0001] The utility model relates to the technical field of stirring equipment, in particular to a three-axis stirring tank. Background Art

[0002] A mixing tank is a container equipment widely used in many industrial fields such as chemical, food, pharmaceutical, building materials, metallurgy, etc. Its main function is to evenly mix, dissolve, disperse or chemically react the materials in the tank through a stirring device (such as an agitator) in the tank. According to the number of stirring shafts, it is divided into single-axis mixing tank, double-axis mixing tank and multi-axis mixing tank. Among them, the multi-axis mixing tank contains three or more stirring shafts and is mainly used to stir highly viscous materials or materials that require highly uniform mixing.

[0003] For example, the patent with authorization announcement number CN207641341U, announcement date 2018-07-24, discloses a three-axis kettle stirring device that can make the material stirred more evenly. The key points of its technical solution are that it includes a stirring tank, a first motor, a second motor, a third motor, a first stirring paddle, a second stirring paddle and a third stirring paddle. The first stirring paddle, the second stirring paddle and the third stirring paddle are all arranged in the stirring tank, and the first stirring paddle, the second stirring paddle and the third stirring paddle are arranged in parallel in the vertical direction. The first motor, the second motor and the third motor are arranged at the top of the stirring tank, and one end of the first stirring paddle, the second stirring paddle and the third stirring paddle passes through the top of the stirring tank and is respectively connected to the first motor, the second motor and the third motor. By adopting the above technical solution, the first motor, the second motor and the third motor drive the first stirring paddle, the second stirring paddle and the third stirring paddle to rotate in the working state, so that the material in the stirring tank is stirred more evenly.

[0004] In the existing three-axis stirring device including the above-mentioned patent, when stirring materials, the stirring shaft mixes the materials by rotating. The tank body used to mix the materials is cylindrical, and the three groups of stirring shafts are arranged on the same straight line. This results in that some areas in the tank body are not fully stirred, and the materials in the stirring areas of the three groups of stirring shafts are over-stirred, affecting the material mixing effect. Utility Model Content

[0005] The utility model aims to provide a three-axis stirring tank with high stirring efficiency.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A three-axis stirring tank comprises a tank body, wherein the upper and lower parts of the tank body are respectively fixedly connected with a feed pipe and a discharge pipe, a stirring assembly is arranged in the tank body, the stirring assembly comprises a first stirring shaft and two groups of second stirring shafts symmetrically arranged on both sides of the first stirring shaft, a driving member is also installed in the upper part of the tank body, the driving member drives the first stirring shaft and the two second stirring shafts to rotate, and a material guide member is arranged on the first stirring shaft to guide the material to the stirring area of ​​the second stirring shaft.

[0008] In the above three-shaft stirring tank, the first stirring shaft comprises a first shaft and a first blade group, and the first blade group is arranged at equal intervals along the axial direction of the first shaft.

[0009] In the above three-shaft stirring tank, the second stirring shaft comprises a second shaft and a second blade group, and the second blade group is arranged at equal intervals along the axial direction of the second shaft.

[0010] The above-mentioned three-axis mixing tank, the driving part includes a first motor fixedly connected to the top of the tank body and two sets of second motors, the output shafts of the first motor and the two second motors both extend into the tank body 1, the upper end of the first shaft is fixedly connected to the output end of the first motor, and the upper ends of the two second shafts are respectively fixedly connected to the output ends of the corresponding second motors.

[0011] In the above-mentioned three-axis stirring tank, the first blade group includes two first stirring blades symmetrically arranged about the central axis of the first axis, and the two first stirring blades are respectively arranged opposite to a group of second axes. The second blade group includes three groups of second stirring blades arranged in a circumferential array along the corresponding second axis. The material guide member includes a material guide plate arranged corresponding to the first stirring blade, and the material guide plate is installed on the corresponding first stirring blade.

[0012] The above-mentioned three-axis stirring tank has a V-shaped material guide plate, and the middle part of the material guide plate is rotatably connected to the corresponding first stirring blade. The opening of the material guide plate faces the corresponding second axis. A blocking member is provided on the first stirring blade. After the material guide plate rotates to contact the blocking member, it cannot continue to rotate.

[0013] In the above-mentioned three-axis stirring tank, the blocking member includes a blocking block fixedly connected to the end of the first stirring blade, the angle between the blocking block and the first stirring blade is an obtuse angle, and when the guide plate rotates to contact the blocking block, a gap exists between the second stirring blade and the guide plate when the second stirring blade rotates.

[0014] The second axis of the three-axis mixing tank comprises an inner axis and an outer axis. An arc groove is provided on the inner side of the outer axis. A protrusion is fixed to the outer wall of the inner axis. The protrusion extends into the arc groove. A spring is provided in the arc groove to push the protrusion to one end of the arc groove.

[0015] The three-axis stirring tank has a soft sleeve mounted on the rotation connection between the guide plate and the first stirring blade.

[0016] In the above three-axis stirring tank, a stirring paddle is fixedly connected to the lower end of the first axis, and the stirring paddle is matched with the bottom of the tank body.

[0017] In the above technical scheme, the three-axis stirring tank provided by the utility model, the first stirring shaft and the two second stirring shafts are driven to rotate, and the material guide member arranged on the first stirring shaft can guide the material in the middle of the tank body to the stirring area of ​​the second stirring shaft, so that the material in the stirring area of ​​the first stirring shaft in the tank body can be continuously replaced with the material in the stirring area of ​​the second stirring shaft, so that the material is stirred more comprehensively, which facilitates rapid and sufficient mixing of the material. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 A schematic diagram of the structure of a tank provided in an embodiment of the utility model;

[0020] Figure 2 A partial cross-sectional view of a tank body provided by an embodiment of the utility model;

[0021] Figure 3 A top view of the gear and the inner gear ring in the matching state provided in the embodiment of the utility model;

[0022] Figure 4 A schematic diagram of the rotation direction of the first shaft and the second shaft in a stirring state provided by an embodiment of the utility model;

[0023] Figure 5 A schematic diagram of the rotation direction of the first shaft and the second shaft in a cleaning state provided by an embodiment of the utility model;

[0024] Figure 6 An enlarged schematic diagram of a material guide plate provided in an embodiment of the utility model;

[0025] Figure 7 A schematic cross-sectional view of a second shaft provided in an embodiment of the utility model.

[0026] Description of reference numerals:

[0027] 1. Tank body; 11. Feed pipe; 12. Discharge pipe; 2. First stirring shaft; 21. First shaft; 211. Stirring paddle; 22. First blade group; 221. First stirring blade; 222. Stop block; 3. Second stirring shaft; 31. Second shaft; 311. Inner shaft; 3111. Bump; 312. Outer shaft; 3121. Arc groove; 313. Spring; 32. Second blade group; 321. Second stirring blade; 4. Driving member; 41. First motor; 42. Second motor; 5. Guide plate; 51. Soft sleeve. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0029] In the description of the present utility model, unless otherwise specified, "multiple" means two or more than two; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0030] like Figure 1-Figure 7 As shown, a three-axis stirring tank provided by an embodiment of the utility model includes a tank body 1, and a feed pipe 11 and a discharge pipe 12 are respectively fixedly connected to the upper and lower parts of the tank body 1, and a stirring assembly is arranged in the tank body 1, and the stirring assembly includes a first stirring shaft 2 and two groups of second stirring shafts 3 symmetrically arranged on both sides of the first stirring shaft 2, and a driving member 4 is also installed in the upper part of the tank body 1, and the driving member 4 drives the first stirring shaft 2 and the two second stirring shafts 3 to rotate, and the first stirring shaft 2 is provided with a material guide member for guiding the material to the stirring area of ​​the second stirring shaft 3.

[0031] The first stirring shaft 2 includes a first shaft 21 and a first blade set 22 . The first blade set 22 is arranged at equal intervals along the axial direction of the first shaft 21 .

[0032] The second stirring shafts 3 each include a second shaft 31 and a second blade set 32 ​​, and the second blade set 32 ​​is arranged at equal intervals along the axial direction of the second shaft 31 .

[0033] The driving member 4 includes a first motor 41 and two sets of second motors 42 fixedly connected to the top of the tank body 1. The output shafts of the first motor 41 and the two second motors 42 extend into the tank body 1. The upper end of the first shaft 21 is fixedly connected to the output end of the first motor 41, and the upper ends of the two second shafts 31 are respectively fixedly connected to the output ends of the corresponding second motors 42.

[0034] Specifically, the two second shafts 31 are symmetrically arranged on both sides of the first shaft 21, and the first shaft 21 is coaxially arranged with the output shaft of the first motor 41. When the mixing tank is in use, the material is put into the tank body 1 through the feeding pipe 11 arranged on the upper part of the tank body 1, and the first motor 41 and the two second motors 42 are started. The first motor 41 drives the first shaft 21 to rotate, and the first blade group 22 arranged on the first shaft 21 stirs the material in the middle of the tank body 1. At the same time, the second motor 42 drives the corresponding second shaft 31 to rotate, driving the second blade group 32 to stir the material near the inner wall of the tank body 1.

[0035] The three-axis stirring tank provided by the embodiment of the utility model has a first stirring shaft 2 and two second stirring shafts 3 driven to rotate, and the material guide member arranged on the first stirring shaft 2 can guide the material in the middle of the tank body 1 to the stirring area of ​​the second stirring shaft 3, so that the material in the stirring area of ​​the first stirring shaft 2 in the tank body 1 can be continuously replaced with the material in the stirring area of ​​the second stirring shaft 3, so that the material is stirred more comprehensively, which facilitates rapid and sufficient mixing of the material.

[0036] In another embodiment of the utility model, the first blade group 22 includes two first stirring blades 221 symmetrically arranged about the central axis of the first shaft 21, and the two first stirring blades 221 are respectively arranged opposite to a group of second shafts 31. The second blade group 32 includes three groups of second stirring blades 321 arranged in a circumferential array along the corresponding second shaft 31, and the material guide member includes a material guide plate 5 arranged corresponding to the first stirring blade 221, and the material guide plate 5 is installed on the corresponding first stirring blade 221.

[0037] Furthermore, the material guide plate 5 is V-shaped, and the middle part of the material guide plate 5 is rotatably connected to the corresponding first stirring blade 221. The opening of the material guide plate 5 faces the corresponding second shaft 31. The first stirring blade 221 is provided with a blocking member. After the material guide plate 5 rotates to contact the blocking member, it cannot continue to rotate.

[0038] Furthermore, the blocking member includes a blocking block 222 fixed to the end of the first stirring blade 221, and the angle between the blocking block 222 and the first stirring blade 221 is an obtuse angle. When the guide plate 5 rotates to contact the blocking block 222, a gap exists between the second stirring blade 321 and the guide plate 5 when the second stirring blade 321 rotates.

[0039] Specifically, the guide plate 5 includes two interconnected first plates and second plates, and the length of the first plate is greater than that of the second plate. Figure 3 and Figure 4As shown, when the material is stirred, due to the resistance exerted by the material on the guide plate 5, the first plate of the guide plate 5 keeps in contact with the blocking block 222. At this time, when the second shaft 31 rotates and drives each second blade to rotate, each second blade will not contact its corresponding guide plate 5, and the guide plate 5 continues to guide the material near the axis of the tank body 1 to the side where the inner wall of the tank body 1 is located through its second plate, so as to be fully stirred by the rotating second blade; and when the tank body 1 needs to be cleaned, according to Figure 5 The first shaft 21 is driven to rotate in the direction shown, so that the second shaft 31 is also driven to rotate in the direction shown. Figure 5 The first plate is rotated in the direction shown. At this time, the first plate is resisted by the cleaning liquid and moves away from the blocking block 222. Figure 5 In the state shown, when the second shaft 31 drives the second blade to rotate, it will hit the first plate, thereby generating vibration. The vibration loosens the residual material attached to each second blade and the guide plate 5, and cooperates with the rotation of the second blade and the first blade (the rotation direction of the second blade and the first blade during the cleaning process is opposite to the rotation direction during stirring), thereby improving the cleaning effect of the first blade and the second blade.

[0040] Furthermore, the second shaft 31 includes an inner shaft 311 and an outer shaft 312. An arc groove 3121 is provided on the inner side of the outer shaft 312. A protrusion 3111 is fixed to the outer wall of the inner shaft 311. The protrusion 3111 extends into the arc groove 3121. A spring 313 is provided in the arc groove 3121 to push the protrusion 3111 to be located at one end of the arc groove 3121.

[0041] Specifically, when the tank body 1 is cleaned in the above embodiment, the second blade is driven to rotate and hit the first plate. However, since the second blade is directly fixed on the second shaft 31, the vibration causes great damage to the connection position between the second blade and the second shaft 31. In this embodiment, the second shaft 31 is configured as an outer shaft 312 and an inner shaft 311, and when the protrusion 3111 is provided, the inner shaft 311 can rotate a certain angle relative to the outer shaft 312, such as Figure 5 and Figure 7 As shown, when the tank body 1 is cleaned, when the second blade is driven to hit the first plate, the outer shaft 312 rotates relative to the inner shaft 311, so that the protrusion 3111 squeezes the spring 313 to deform, thereby buffering the vibration to reduce damage to the connection between the second blade and the outer shaft 312. Moreover, since the outer shaft 312 and the inner shaft 311 can rotate relative to each other, when the second blade is hit, the outer shaft 312 is driven to rotate a certain angle relative to the inner shaft 311, thereby expanding the movement amplitude of the second blade and facilitating the cleaning of the material.

[0042] Furthermore, a soft sleeve 51 is provided at the rotational connection between the guide plate 5 and the first stirring blade 221 , and the connection between the guide plate 5 and the first stirring blade 221 is shielded by the rubber sleeve to prevent the material from adhering to the hinged position of the guide plate 5 .

[0043] Furthermore, a stirring paddle 211 is fixedly connected to the lower end of the first shaft 21 , and the stirring paddle 211 is matched with the bottom of the tank body 1 . Such an arrangement can stir the material at the lower part of the tank body 1 near the discharge pipe 12 .

[0044] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A three-axis stirring tank, comprising a tank body, wherein the upper and lower parts of the tank body are respectively fixed with a feed pipe and a discharge pipe, and a stirring assembly is arranged in the tank body, characterized in that: The stirring assembly includes a first stirring shaft and two sets of second stirring shafts symmetrically arranged on both sides of the first stirring shaft. A driving member is also installed on the upper inner part of the tank body. The driving member drives the first stirring shaft and the two second stirring shafts to rotate. The first stirring shaft is provided with a material guide member for guiding the material to the stirring area of ​​the second stirring shaft.

2. A three-axis stirring tank according to claim 1, characterized in that: The first stirring shaft comprises a first shaft and a first blade group, and the first blade group is arranged at equal intervals along the axial direction of the first shaft.

3. A three-axis stirring tank according to claim 2, characterized in that: The second stirring shafts each include a second shaft and a second blade set, and the second blade set is arranged at equal intervals along the axial direction of the second shaft.

4. A three-axis stirring tank according to claim 3, characterized in that: The driving member includes a first motor fixedly connected to the top of the tank body and two groups of second motors. The output shafts of the first motor and the two second motors extend into the tank body. The upper end of the first shaft is fixedly connected to the output end of the first motor, and the upper ends of the two second shafts are respectively fixedly connected to the output ends of the corresponding second motors.

5. A three-axis stirring tank according to claim 3, characterized in that: The first blade group includes two first stirring blades symmetrically arranged about the central axis of the first axis, and the two first stirring blades are respectively arranged opposite to a group of second axes. The second blade group includes three groups of second stirring blades arranged in a circumferential array along the corresponding second axis. The material guide member includes a material guide plate arranged corresponding to the first stirring blade, and the material guide plate is installed on the corresponding first stirring blade.

6. A three-axis stirring tank according to claim 5, characterized in that: The guide plate is V-shaped, and the middle part of the guide plate is rotatably connected to the corresponding first stirring blade. The opening of the guide plate faces the corresponding second axis. A blocking member is provided on the first stirring blade. After the guide plate rotates to contact the blocking member, it cannot continue to rotate.

7. A three-shaft stirring tank according to claim 6, characterized in that: The blocking member includes a blocking block fixed to the end of the first stirring blade, the angle between the blocking block and the first stirring blade is an obtuse angle, when the guide plate rotates to contact the blocking block, a gap exists between the second stirring blade and the guide plate when the second stirring blade rotates.

8. A three-shaft stirring tank according to claim 7, characterized in that: The second shaft includes an inner shaft and an outer shaft. The inner side of the outer shaft is provided with an arc groove. The outer wall of the inner shaft is fixed with a convex block, which extends into the arc groove. The arc groove is provided with a spring to push the convex block to one end of the arc groove.

9. A three-shaft stirring tank according to claim 6, characterized in that: A soft sleeve is mounted on the rotation connection between the material guide plate and the first stirring blade.

10. A three-axis stirring tank according to claim 2, characterized in that: The lower end of the first shaft is fixedly connected with a stirring paddle, which is matched with the bottom of the tank body.

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